Neither self-service password change nor the admin reset invalidated
already-issued JWTs — a 24h-lifetime token stayed valid regardless, so
a stolen token (or an attacker who already had the old password) kept
working past a password change meant to lock them out. The admin reset
exists precisely for the "account compromised" case and didn't evict
the attacker at all.
Add User.token_version (migration 943dbd74d983), embedded in every JWT
as a "tv" claim and checked against the DB on every request in
get_current_user/get_optional_user; a mismatch reads as session_expired.
Both change-password and the admin reset bump it. change-password hands
back a freshly minted token so the caller's own session keeps working
instead of being logged out by its own request; the admin reset does
not, since that session isn't the one making the call.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
fee_address was the dangerous one (B-05). PUT /admin/config assigned whatever it
was given, and a well-formed address from another chain (bc1...) parses fine as a
witness program — so every round's 30% commission would be signed and broadcast
to a script nobody holds the key for. A malformed one instead wedged the payout
with an unhandled EmbitError. It now has to pass is_valid_plm_address, the same
check user withdrawals already had. Numeric fields got bounds too:
fee_rate_sat_vb=0 produces transactions no node relays, which stalls bets,
payouts and withdrawals alike, and round_duration_seconds=0 expires a round the
instant it opens.
Config changes are audit-logged (B-10). /pause and /resume were logged but a
config edit wasn't, so the most sensitive setting in the system could be changed
without leaving any trace — contradicting CLAUDE.md, which says audit_log records
what changed. The entry carries a before/after diff per field, computed before
assignment, and no-op updates write nothing. `paused` was removed from
_CONFIG_FIELDS so the maintenance switch has exactly one audited path; it stays
in the response model.
Admin token comparison is constant-time (B-14), with the empty-token check kept
*ahead* of it: compare_digest("", "") returns True, so the obvious ordering would
have opened the panel on any instance without an ADMIN_TOKEN.
Registration input (B-12). It accepted an empty username and a one-character
password while /users/me/change-password demanded 8 — an odd place to be lenient
on a custodial system holding real funds. MIN_PASSWORD_LENGTH moved to
auth/security.py so both share it, and the username is constrained to 3-32 chars
of [A-Za-z0-9_.-]. The IntegrityError handler also distinguishes a username
collision (answers username_taken) from a derivation-index one (retries): a
concurrent duplicate username used to be retried five times and then reported as
derivation_index_conflict, which told the user the wrong thing.
verify_password (B-13) catches VerificationError and InvalidHashError, not just
VerifyMismatchError, so an unparseable stored hash reads as "wrong password"
instead of a 500 — logged as an error, since that one is a data problem.
guida-admin.md gains a table of the audit events worth watching, including
payout_failed, which needs manual intervention.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Session hardening: / and /admin now respond with Cache-Control: no-store, and
both pages re-derive their auth state on pageshow (event.persisted) as a
safety net against bfcache showing a stale logged-in/out view across
back/forward navigation. The user page also syncs logout across tabs via the
storage event, since localStorage is shared but in-memory JS state isn't.
Password recovery: admin gets a "Reset" button per user (POST
/admin/users/{id}/reset-password) that generates and sets a new password,
shown once — passwords are Argon2-hashed and can never be recovered, only
replaced. Users get self-service password change (POST
/users/me/change-password, requires the current password) under a new
Profilo tab, alongside read-only account info (username, address, balance,
join date).
Round display robustness: the user dashboard now refreshes immediately on
tab visibility change (background tabs get their timers throttled hard),
shows an explicit "connessione persa" state after repeated failed polls
instead of silently freezing on stale data, and polls faster both right when
the countdown hits zero and through the gap where the round is past its
deadline but still waiting for in-flight bets to confirm before the server
actually closes it.
davideandClaude Sonnet 5